/*
 * Copyright 2009 Brian Watkins
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package bw.weather;

public class WeatherLocationFactory
{
    private static WeatherLocationFactory _instance = null;
    private static Object _lock = new Object();

    private String _licenseKey = "";
    private String _partnerId = "";
    private int _forecastLength = 5;
    private int _updateInterval = 30;

    public static WeatherLocationFactory getInstance ()
    {
        if ( _instance == null )
        {
            synchronized ( _lock )
            {
                if ( _instance == null )
                {
                    _instance = new WeatherLocationFactory();
                }
            }
        }

        return _instance;
    }
    
    private WeatherLocationFactory ()
    {
        //nothing
    }

    public void init ( String partnerId, String licenseKey, int length, int updateInterval )
    {
        _partnerId = partnerId;
        _licenseKey = licenseKey;
        _forecastLength = length;
        _updateInterval = updateInterval;
    }
    
    public WeatherLocation createWeatherLocation ( String locationId ) 
        throws InvalidWeatherLocationException
    {
        WeatherLocation loc = new WeatherLocation( _partnerId, _licenseKey, 
                                                   _forecastLength, _updateInterval );
        loc.setLocationId( locationId );

        return loc;
    }
}